Outflow reason: AOI was inexperienced in scanning and QC inspection. It was considered that the optical point was not incomplete and would not affect the use of customers, so the residual copper was not repaired.
Outflow reason: the experience of AOI scanning and QC inspection was insufficient, and it was thought that the optical point was not defective and would not affect the use of customers, so the residual copper was not repaired and treated.